172489405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{12203}}^1$

素因数の和:12476

約数の個数: 16

約数和(自身を含む): 226701504

約数和(自身を除く): 54212099

約数列:

[1, 5, 11, 55, 257, 1285, 2827, 12203, 14135, 61015, 134233, 671165, 3136171, 15680855, 34497881, 172489405]

約数ペア:

[(1, 172489405), (5, 34497881), (11, 15680855), (55, 3136171), (257, 671165), (1285, 134233), (2827, 61015), (12203, 14135)]